CELLULOSE, cilt.32, ss.10307-10342, 2025 (SCI-Expanded, Scopus)
Mineral-based fillers are the second preferred material in paper production, following cellulose as the main material because their use improves some paper's physical and optical properties, energy needed cost reduction at the dryer of paper production, and decreases cellulose consumption cost due to their being cheaper than cellulose in papermaking. Nonetheless, mineral-based filler particles are much smaller than cellulosic fibers. Filler particles in the paper matrix can inhibit hydrogen bonds between pulp cellulosic fibers, reducing some physical properties of paper. To overcome these problems, many studies have been carried out, focusing on improving the retention of mineral-based fillers on cellulosic fibers and making them compatible with pulp fibers. In this study, carboxymethylated xylan (CMX) was produced by the carboxymethylation reaction of xylan (XS), and it was used to modify the surface of precipitated calcium carbonate (PCC) filler for use in paper pulp. The physical and optical properties of paper handsheets filled with modified PCC (CMX-PCC) were examined, and the results showed that the properties of paper handsheets were improved by comparing PCC usage. These findings were also confirmed by Fourier Transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA), Nuclear Magnetic Resonance Spectroscopy (NMR), X-ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), and Field-Emission Scanning Electron Microscopy (FE-SEM) and Energy Dispersive X-ray (EDX) techniques. This study proposes a novel approach to PCC filler modification, suggesting a promising alternative for papermaking applications.